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Ferreira BA, Moura FBRD, Cassimiro IS, Londero VS, Gonçalves MDM, Lago JHG, Araújo FDA. Costic acid, a sesquiterpene from Nectandra barbellata (Lauraceae), attenuates sponge implant-induced inflammation, angiogenesis and collagen deposition in vivo. Fitoterapia 2024; 175:105939. [PMID: 38570096 DOI: 10.1016/j.fitote.2024.105939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 03/26/2024] [Accepted: 03/30/2024] [Indexed: 04/05/2024]
Abstract
Sesquiterpenes are a class of metabolites derived from plant species with immunomodulatory activity. In this study, we evaluated the effects of treatment with costic acid on inflammation, angiogenesis, and fibrosis induced by subcutaneous sponge implants in mice. One sponge disc per animal was aseptically implanted in the dorsal region of the mice and treated daily with costic acid (at concentrations of 0.1, 1, and 10 μg diluted in 10 μL of 0.5% DMSO) or 0.5% DMSO (control group). After 9 days of treatment, the animals were euthanized, and the implants collected for further analysis. Treatment with costic acid resulted in the reduction of the inflammatory parameters evaluated compared to the control group, with a decrease in the levels of inflammatory cytokines and chemokines (TNF, CXCL-1, and CCL2) and in the activity of MPO and NAG enzymes. Costic acid administration altered the process of mast cell degranulation. We also observed a reduction in angiogenic parameters, such as a decrease in the number of blood vessels, the hemoglobin content, and the levels of VEGF and FGF cytokines. Finally, when assessing implant-induced fibrogenesis, we observed a reduction in the levels of the pro-fibrogenic cytokine TGF-β1, and lower collagen deposition. The results of this study demonstrate, for the first time, the anti-inflammatory, anti-angiogenic, and anti-fibrotic effects of costic acid in an in vivo model of chronic inflammation and reinforce the therapeutic potential of costic acid.
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Affiliation(s)
- Bruno Antonio Ferreira
- Center for Natural and Human Sciences, Federal University of ABC, São Paulo 09210-170, Brazil; Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia 38408-100, Brazil
| | | | - Isabella Silva Cassimiro
- Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia 38408-100, Brazil
| | - Vinicius Silva Londero
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, São Paulo 05508-000, Brazil
| | | | | | - Fernanda de Assis Araújo
- Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia 38408-100, Brazil.
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Gomes KS, Coelho JA, Gomes RN, Bosquetti LM, Lange CN, Batista BL, Cerchiaro G, Lago JHG. Dehydrodieugenol isolated from Ocotea cymbarum induces cell death in human breast cancer cell lines by dysregulation of intracellular copper concentration. Chem Biol Interact 2024; 396:111039. [PMID: 38719171 DOI: 10.1016/j.cbi.2024.111039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 04/16/2024] [Accepted: 05/05/2024] [Indexed: 05/12/2024]
Abstract
In this work, two neolignans - dehydrodieugenol (1) and dehydrodieugenol B (2) - were isolated from leaves of Ocotea cymbarum (H. B. K.) Ness. (Lauraceae). When tested against two human breast cancer cell lines (MCF7 and MDA-MB-231), compound 1 was inactive (IC50 > 500 μM) whereas compound 2 displayed IC50 values of 169 and 174 μM, respectively. To evaluate, for the first time in the literature, the synergic cytotoxic effects of compounds 1 and 2 with ion Cu2+, both cell lines were incubated with equimolar solutions of these neolignans and Cu(ClO4)2·6H2O. Obtained results revealed no differences in cytotoxicity upon the co-administration of compound 2 and Cu2+. However, the combination of compound 1 and Cu2+ increases the cytotoxicity against MCF7 and MDA-MB-231 cells, with IC50 values of 165 and 204 μM, respectively. The activity of compound 1 and Cu2+ in MCF7 spheroids regarding the causes/effects considering the tumoral microenvironment were accessed using fluorescence staining and imaging by fluorescence microscopy. This analysis enabled the observation of a higher red filter fluorescence intensity in the quiescence zone and the necrotic core, indicating a greater presence of dead cells, suggesting that the combination permeates the spheroid. Finally, using ICP-MS analysis, the intracellular copper disbalance caused by mixing compound 1 and Cu2+ was determined quantitatively. The findings showcased a 50-fold surge in the concentration of Cu2+ compared with untreated cells (p > 0.0001) - 18.7 ng of Cu2+/mg of proteins and 0.37 ng of Cu2+/mg of protein, respectively. Conversely, the concentration of Cu2+ in cells treated with compound 1 was similar to values of the negative control group (0.29 ng of Cu2+/mg of protein). This alteration allowed us to infer that compound 1 combined with Cu2+ induces cell death through copper homeostasis dysregulation.
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Affiliation(s)
- Kaio S Gomes
- Laboratory of Chemical Biology, Centre of Natural Sciences and Humanities, Federal University of ABC, 09280-580, Santo Andre, SP, Brazil; Metal Biochemistry and Oxidative Stress Laboratory, Centre of Natural Sciences and Humanities, Federal University of ABC, 09280-580, Santo Andre, SP, Brazil
| | - Julia A Coelho
- Metal Biochemistry and Oxidative Stress Laboratory, Centre of Natural Sciences and Humanities, Federal University of ABC, 09280-580, Santo Andre, SP, Brazil
| | - Rafael N Gomes
- Metal Biochemistry and Oxidative Stress Laboratory, Centre of Natural Sciences and Humanities, Federal University of ABC, 09280-580, Santo Andre, SP, Brazil
| | - Lucas M Bosquetti
- Metal Biochemistry and Oxidative Stress Laboratory, Centre of Natural Sciences and Humanities, Federal University of ABC, 09280-580, Santo Andre, SP, Brazil
| | - Camila N Lange
- Environmentals BR, Centre of Natural Sciences and Humanities, Federal University of ABC, 09280-580, Santo Andre, SP, Brazil
| | - Bruno L Batista
- Environmentals BR, Centre of Natural Sciences and Humanities, Federal University of ABC, 09280-580, Santo Andre, SP, Brazil
| | - Giselle Cerchiaro
- Metal Biochemistry and Oxidative Stress Laboratory, Centre of Natural Sciences and Humanities, Federal University of ABC, 09280-580, Santo Andre, SP, Brazil.
| | - João Henrique G Lago
- Laboratory of Chemical Biology, Centre of Natural Sciences and Humanities, Federal University of ABC, 09280-580, Santo Andre, SP, Brazil.
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Torres AM, Ojeda GA, Angelina E, Bustillo S, Peruchena N, Tonidandel L, Larcher R, Nardin T, Dellacassa E. The anti-snake activity of Nectandra angustifolia flavonoids on phospholipase A2: In vitro and in silico evaluation. JOURNAL OF ETHNOPHARMACOLOGY 2023; 302:115889. [PMID: 36334817 DOI: 10.1016/j.jep.2022.115889] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/17/2022] [Accepted: 10/29/2022] [Indexed: 06/16/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Lauraceae family includes Nectandra angustifolia a species widely used in the folk medicine of South America against various maladies. It is commonly used to treat different types of processes like inflammation, pain, and snakebites. Snakes of the Bothrops genus are responsible for about 97% of the ophidic accidents in northeastern Argentina. AIM OF THE STUDY To evaluate the anti-snake activity of the phytochemicals present in N. angustifolia extracts, identify the compounds, and evaluate their inhibitory effect on phospholipase A2 (PLA2) with in vitro and in silico assays. METHODS Seasonal variations in the alexiteric potential of aqueous, ethanolic and hexanic extracts were evaluated by inhibition of coagulant, haemolytic, and cytotoxic effects of B. diporus venom. The chemical identity of an enriched fraction obtained by bio-guided fractioning was established by UPLC-MS/MS analysis. Molecular docking studies were carried out to investigate the binding mechanisms of the identified compounds to PLA2 enzyme from snake venom. RESULTS All the extracts inhibited venom coagulant activity. However, spring ethanolic extract achieved 100% inhibition of haemolytic activity. Bio-guide fractioning led to an enriched fraction (F4) with the highest haemolytic inhibition. Five flavonoids were identified in this fraction; molecular docking and Molecular Dynamics (MD) simulations indicated the binding mechanisms of the identified compounds. The carbohydrates present in some of the compounds had a critical effect on the interaction with PLA2. CONCLUSION This study shows, for the first time, which compounds are responsible for the anti-snake activity in Nectandra angustifolia based on in vitro and in silico assays. The results obtained in this work support the traditional use of this species as anti-snake in folk medicine.
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Affiliation(s)
- Ana María Torres
- Facultad de Ciencias Exactas y Naturales y Agrimensura, Universidad Nacional del Nordeste, Av. Libertad 5470, 3400, Corrientes, Argentina; Instituto de Química Básica y Aplicada del NEA - (IQUIBA-NEA-CONICET), Av. Libertad 5470, 3400, Corrientes, Argentina
| | - Gonzalo Adrián Ojeda
- Facultad de Ciencias Exactas y Naturales y Agrimensura, Universidad Nacional del Nordeste, Av. Libertad 5470, 3400, Corrientes, Argentina; Instituto de Química Básica y Aplicada del NEA - (IQUIBA-NEA-CONICET), Av. Libertad 5470, 3400, Corrientes, Argentina.
| | - Emilio Angelina
- Facultad de Ciencias Exactas y Naturales y Agrimensura, Universidad Nacional del Nordeste, Av. Libertad 5470, 3400, Corrientes, Argentina; Instituto de Química Básica y Aplicada del NEA - (IQUIBA-NEA-CONICET), Av. Libertad 5470, 3400, Corrientes, Argentina
| | - Soledad Bustillo
- Facultad de Ciencias Exactas y Naturales y Agrimensura, Universidad Nacional del Nordeste, Av. Libertad 5470, 3400, Corrientes, Argentina; Instituto de Química Básica y Aplicada del NEA - (IQUIBA-NEA-CONICET), Av. Libertad 5470, 3400, Corrientes, Argentina
| | - Nélida Peruchena
- Facultad de Ciencias Exactas y Naturales y Agrimensura, Universidad Nacional del Nordeste, Av. Libertad 5470, 3400, Corrientes, Argentina; Instituto de Química Básica y Aplicada del NEA - (IQUIBA-NEA-CONICET), Av. Libertad 5470, 3400, Corrientes, Argentina
| | - Loris Tonidandel
- Centro Trasferimento Tecnologico, Fondazione Edmund Mach di San Michele all'Adige, Via E. Mach 1, 38010-S, Michele all'Adige (TN), Italy
| | - Roberto Larcher
- Centro Trasferimento Tecnologico, Fondazione Edmund Mach di San Michele all'Adige, Via E. Mach 1, 38010-S, Michele all'Adige (TN), Italy
| | - Tiziana Nardin
- Centro Trasferimento Tecnologico, Fondazione Edmund Mach di San Michele all'Adige, Via E. Mach 1, 38010-S, Michele all'Adige (TN), Italy
| | - Eduardo Dellacassa
- Facultad de Química, Universidad de la República, Av General Flores 2124, 11800, Montevideo, Uruguay
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Galhardo TS, Ueno AK, Costa-Silva TA, Tempone AG, Carvalho WA, Fischmeister C, Bruneau C, Mandelli D, Lago JHG. New derivatives from dehydrodieugenol B and its methyl ether displayed high anti-Trypanosoma cruzi activity and cause depolarization of the plasma membrane and collapse the mitochondrial membrane potential. Chem Biol Interact 2022; 366:110129. [PMID: 36067825 DOI: 10.1016/j.cbi.2022.110129] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 08/04/2022] [Accepted: 08/20/2022] [Indexed: 11/16/2022]
Abstract
In the present work, dehydrodieugenol B (1) and its methyl ether (2), isolated from Nectandra leucantha twigs, were used as starting material for the preparation of two new derivatives (1a and 2a) containing an additional methoxycarbonyl unit on allyl side chains. Compounds 1a and 2a demonstrated activity against trypomastigotes (EC50 values of 13.5 and 23.0 μM, respectively) and against intracellular amastigotes (EC50 values of 10.2 and 6.1 μM, respectively). Additionally, compound 2a demonstrated no mammalian cytotoxicity up to 200 μM whereas compound 1a exhibited a CC50 value of 139.8 μM. The mechanism of action studies of compounds 1a and 2a demonstrated a significant depolarization of the plasma membrane potential in trypomastigotes, followed by a mitochondrial membrane potential collapse. Neither calcium level nor reactive oxygen species alterations were observed after a short-time incubation. Considering the potential of compound 2a against T. cruzi and its simple preparation from the natural product 2, isolated from N. leucantha, this compound could be considered a new hit for future drug design studies in Chagas disease.
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Affiliation(s)
- Thalita S Galhardo
- Center of Natural and Human Sciences, Federal University of ABC, Santo Andre, 09210-580, Brazil
| | - Anderson K Ueno
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, Diadema, 09972-270, Brazil
| | - Thaís A Costa-Silva
- Center of Natural and Human Sciences, Federal University of ABC, Santo Andre, 09210-580, Brazil; SENAI Institute of Innovation in Biotechnology, 01130-000, São Paulo, Brazil
| | - André G Tempone
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo, 01246-000, Brazil
| | - Wagner A Carvalho
- Center of Natural and Human Sciences, Federal University of ABC, Santo Andre, 09210-580, Brazil
| | - Cedric Fischmeister
- Institut des Sciences Chimiques de Rennes, University of Rennes, Rennes, UMR6226, 35000, France
| | - Christian Bruneau
- Institut des Sciences Chimiques de Rennes, University of Rennes, Rennes, UMR6226, 35000, France
| | - Dalmo Mandelli
- Center of Natural and Human Sciences, Federal University of ABC, Santo Andre, 09210-580, Brazil.
| | - João Henrique G Lago
- Center of Natural and Human Sciences, Federal University of ABC, Santo Andre, 09210-580, Brazil.
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Conserva GA, Costa-Silva TA, Quirós-Guerrero LM, Marcourt L, Wolfender JL, Queiroz EF, Tempone AG, Lago JHG. Kaempferol-3-O-α-(3,4-di-E-p-coumaroyl)-rhamnopyranoside from Nectandra oppositifolia releases Ca 2+ from intracellular pools of Trypanosoma cruzi affecting the bioenergetics system. Chem Biol Interact 2021; 349:109661. [PMID: 34537181 DOI: 10.1016/j.cbi.2021.109661] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 08/12/2021] [Accepted: 09/15/2021] [Indexed: 12/22/2022]
Abstract
Phytochemical analysis of EtOH extract from leaves of Nectandra oppositifolia afforded three flavonoids: kaempferol (1), kaempferol-3-O-α-rhamnopyranoside (2) and kaempferol-3-O-α-(3,4-di-E-p-coumaroyl)-rhamnopyranoside (3), which were characterized by NMR and ESI-HRMS. When tested against the protozoan parasite Trypanosoma cruzi, the etiologic agent of Chagas disease, flavonoids 1 and 3 were effective to kill the trypomastigotes with IC50 values of 32.0 and 6.7 μM, respectively, while flavonoid 2 was inactive. Isolated flavonoids 1-3 were also tested in mammalian fibroblasts and showed CC50 values of 24.8, 48.7 and 153.1 μM, respectively. Chemically, these results suggested that the free aglycone plays an important role in the bioactivity while the presence of p-coumaroyl unities linked in the rhamnoside unity is important to enhance the antitrypanosomal activity and reduce the mammalian cytotoxicity. The mechanism of cellular death was investigated for the most potent flavonoid 3 in the trypomastigotes using fluorescent and luminescent-based assays. It indicated that this compound induced neither permeabilization of the plasma membrane nor depolarization of the membrane electric potential. However, early time incubation (20 min) with flavonoid 3 resulted in a constant elevation of the Ca2+ levels inside the parasite. This effect was followed by a mitochondrial imbalance, leading to a hyperpolarization and depolarization of the mitochondrial membrane potential, with reduction of the ATP levels. During this time, the levels of reactive oxygen species levels (ROS) were unaltered. The leakage of Ca2+ from the intracellular pools can affect the bioenergetics system of T. cruzi, leading to the parasite death. Therefore, flavonoid 3 can be a useful tool for future studies against T. cruzi parasites.
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Affiliation(s)
- Geanne A Conserva
- Center of Natural Sciences and Humanities, Federal University of ABC, Santo Andre, SP, 09210-180, Brazil.
| | - Thais A Costa-Silva
- Center of Natural Sciences and Humanities, Federal University of ABC, Santo Andre, SP, 09210-180, Brazil.
| | - Luis M Quirós-Guerrero
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland (ISPSW), University of Geneva, Geneva, Switzerland.
| | - Laurence Marcourt
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland (ISPSW), University of Geneva, Geneva, Switzerland.
| | - Jean-Luc Wolfender
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland (ISPSW), University of Geneva, Geneva, Switzerland.
| | - Emerson F Queiroz
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland (ISPSW), University of Geneva, Geneva, Switzerland.
| | - Andre G Tempone
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo, SP, 01246-000, Brazil.
| | - João Henrique G Lago
- Center of Natural Sciences and Humanities, Federal University of ABC, Santo Andre, SP, 09210-180, Brazil.
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Kourbeli V, Chontzopoulou E, Moschovou K, Pavlos D, Mavromoustakos T, Papanastasiou IP. An Overview on Target-Based Drug Design against Kinetoplastid Protozoan Infections: Human African Trypanosomiasis, Chagas Disease and Leishmaniases. Molecules 2021; 26:molecules26154629. [PMID: 34361781 PMCID: PMC8348971 DOI: 10.3390/molecules26154629] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/23/2021] [Accepted: 07/27/2021] [Indexed: 02/06/2023] Open
Abstract
The protozoan diseases Human African Trypanosomiasis (HAT), Chagas disease (CD), and leishmaniases span worldwide and therefore their impact is a universal concern. The present regimen against kinetoplastid protozoan infections is poor and insufficient. Target-based design expands the horizon of drug design and development and offers novel chemical entities and potential drug candidates to the therapeutic arsenal against the aforementioned neglected diseases. In this review, we report the most promising targets of the main kinetoplastid parasites, as well as their corresponding inhibitors. This overview is part of the Special Issue, entitled "Advances of Medicinal Chemistry against Kinetoplastid Protozoa (Trypanosoma brucei, Trypanosoma cruzi and Leishmania spp.) Infections: Drug Design, Synthesis and Pharmacology".
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Affiliation(s)
- Violeta Kourbeli
- Department of Pharmacy, Division of Pharmaceutical Chemistry, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimioupoli-Zografou, 157 84 Athens, Greece;
| | - Eleni Chontzopoulou
- Department of Organic Chemistry, Faculty of Chemistry, National and Kapodistrian University of Athens, Panepistimioupoli-Zografou, 157 71 Athens, Greece; (E.C.); (K.M.); (D.P.); (T.M.)
| | - Kalliopi Moschovou
- Department of Organic Chemistry, Faculty of Chemistry, National and Kapodistrian University of Athens, Panepistimioupoli-Zografou, 157 71 Athens, Greece; (E.C.); (K.M.); (D.P.); (T.M.)
| | - Dimitrios Pavlos
- Department of Organic Chemistry, Faculty of Chemistry, National and Kapodistrian University of Athens, Panepistimioupoli-Zografou, 157 71 Athens, Greece; (E.C.); (K.M.); (D.P.); (T.M.)
| | - Thomas Mavromoustakos
- Department of Organic Chemistry, Faculty of Chemistry, National and Kapodistrian University of Athens, Panepistimioupoli-Zografou, 157 71 Athens, Greece; (E.C.); (K.M.); (D.P.); (T.M.)
| | - Ioannis P. Papanastasiou
- Department of Pharmacy, Division of Pharmaceutical Chemistry, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimioupoli-Zografou, 157 84 Athens, Greece;
- Correspondence:
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Interaction of isolinderanolide E obtained from Nectandra oppositifolia with biomembrane models. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2021; 1863:183690. [PMID: 34224703 DOI: 10.1016/j.bbamem.2021.183690] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 06/24/2021] [Accepted: 06/28/2021] [Indexed: 01/07/2023]
Abstract
A long-tail lactone, named isolinderanolide E, was obtained from Nectandra oppositifolia and incorporated in Langmuir monolayers of dipalmitoyl-phosphoethanolamine (DPPE) as a model of microbial membranes. The compound was dissolved in chloroform and mixed with DPPE to provide mixed solutions spread on the air-water interface. After solvent evaporation, mixed monolayers were formed, and surface pressure-area isotherms, dilatational rheology, Brewster angle microscopy (BAM), and infrared spectroscopy were employed to characterize the prodrug-membrane interactions. Isolinderanolide E expanded DPPE monolayers, denoting repulsive interactions. At 30 mN/m, the monolayer presented higher viscoelastic and in-plane elasticity parameters and an increased ratio of all-trans/gauche conformers of the alkyl chains, confirming molecular order. Morphology of the monolayer was analyzed by BAM, which revealed a more homogeneous distribution of Isolinderanolide E along the DPPE monolayer than the prodrug directly spread at the interface, which tends to aggregate. A molecular model proposing the molecular orientation of the amphiphilic drug is presented and explained by the distortion of the alkyl chains as well as by viscoelastic changes. In conclusion, the prodrug changes the thermodynamic, rheological, morphological, and structural properties of the DPPE monolayer, which may be essential to understand, at the molecular level, the action of bioactives in selected membrane models.
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Ferrini L, Rodríguez JP, Melana Colavita JP, Olea G, Ojeda GA, Ricciardi G, Torres AM, Aguirre MV. Anti-inflammatory activity of Nectandra angustifolia (Laurel Amarillo) ethanolic extract. JOURNAL OF ETHNOPHARMACOLOGY 2021; 272:113937. [PMID: 33609727 DOI: 10.1016/j.jep.2021.113937] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 02/11/2021] [Accepted: 02/15/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Nectandra angustifolia belongs to the Lauraceae family and it is widely known in phytomedicine by local inhabitants of South America against various maladies. It is popularly used for the treatment of different types of inflammatory processes, like rheumatism, arthritis and its associated pain. AIM OF THE STUDY To characterize the phytochemicals in an ethanolic extract of Nectandra angustifolia and to evaluate the total antioxidant content and its anti-inflammatory effect with multiparametric analyses through in vitro assays and an in vivo model. METHODS Leaves and stems of Nectandra angustifolia were air-dried and an ethanolic extract (NaE) was further obtained. Total phenolic, flavonoid and tannin content were determined and the antioxidant activity was addressed by DPPH and FRAP assays. NaE was first analyzed by HPLC and then two tests were carried out as screening assays for anti-inflammatory activities: red blood cell membrane stabilization and protein denaturation. The non-cytotoxic concentration of NaE was determined for in vitro biological assays using RAW 264.7 (murine macrophages) cell cultures through cell counting with Trypan-blue and XTT assay. Subsequently, the cell cycle of RAW 264.7 cells exposed for 24 h to NaE was analyzed. Additionally, the anti-inflammatory capacity of NaE was evaluated by RT-qPCR of pro-inflammatory cytokines. Furthermore, NF-κB translocation was observed by confocal microscopy at different times. Finally, formalin-induced mice paw inflammation was used as an in vivo model. RESULTS The chromatographic profile of NaE showed peaks compatible with flavonoids content. NaE exhibited better membrane stabilization effect on HRBC and protection of BSA denaturation than the standard drug (diclofenac). NaE diminished mRNA levels of pro-inflammatory cytokines when added 1-h prior LPS stimulation. Moreover, NaE prevented the translocation of NF-κB to the nucleus and in formalin-induced mice paw inflammation, reduced the edema and the stimulus of inflammatory phase. CONCLUSION This study shows for the first time, that Nectandra angustifolia ethanolic extract has a high content of flavonoids and that possess antioxidant and anti-inflammatory biological properties as demonstrated by multiparametric analyses from in vitro assays and an in vivo model of inflammation.
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Affiliation(s)
- Leandro Ferrini
- Laboratorio de Investigaciones Bioquímicas de La Facultad de Medicina (LIBIM), Instituto de Química Básica y Aplicada Del NEA, (IQUIBA NEA- UNNE- CONICET), Facultad de Medicina, Universidad Nacional Del Nordeste, 3400, Corrientes, Argentina; Laboratorio de Productos Naturales Prof. Armando Ricciardi (LabProdNat), Instituto de Química Básica y Aplicada Del NEA, (IQUIBA NEA- UNNE- CONICET), Facultad de Ciencias Exactas y Naturales y Agrimensura, Universidad Nacional Del Nordeste, 3400, Corrientes, Argentina.
| | - Juan Pablo Rodríguez
- Laboratorio de Investigaciones Bioquímicas de La Facultad de Medicina (LIBIM), Instituto de Química Básica y Aplicada Del NEA, (IQUIBA NEA- UNNE- CONICET), Facultad de Medicina, Universidad Nacional Del Nordeste, 3400, Corrientes, Argentina.
| | - Juan Pablo Melana Colavita
- Laboratorio de Investigaciones Bioquímicas de La Facultad de Medicina (LIBIM), Instituto de Química Básica y Aplicada Del NEA, (IQUIBA NEA- UNNE- CONICET), Facultad de Medicina, Universidad Nacional Del Nordeste, 3400, Corrientes, Argentina.
| | - Gabriela Olea
- Laboratorio de Investigaciones Bioquímicas de La Facultad de Medicina (LIBIM), Instituto de Química Básica y Aplicada Del NEA, (IQUIBA NEA- UNNE- CONICET), Facultad de Medicina, Universidad Nacional Del Nordeste, 3400, Corrientes, Argentina.
| | - Gonzalo Adrian Ojeda
- Laboratorio de Productos Naturales Prof. Armando Ricciardi (LabProdNat), Instituto de Química Básica y Aplicada Del NEA, (IQUIBA NEA- UNNE- CONICET), Facultad de Ciencias Exactas y Naturales y Agrimensura, Universidad Nacional Del Nordeste, 3400, Corrientes, Argentina.
| | - Gabriela Ricciardi
- Laboratorio de Productos Naturales Prof. Armando Ricciardi (LabProdNat), Instituto de Química Básica y Aplicada Del NEA, (IQUIBA NEA- UNNE- CONICET), Facultad de Ciencias Exactas y Naturales y Agrimensura, Universidad Nacional Del Nordeste, 3400, Corrientes, Argentina.
| | - Ana María Torres
- Laboratorio de Productos Naturales Prof. Armando Ricciardi (LabProdNat), Instituto de Química Básica y Aplicada Del NEA, (IQUIBA NEA- UNNE- CONICET), Facultad de Ciencias Exactas y Naturales y Agrimensura, Universidad Nacional Del Nordeste, 3400, Corrientes, Argentina.
| | - María Victoria Aguirre
- Laboratorio de Investigaciones Bioquímicas de La Facultad de Medicina (LIBIM), Instituto de Química Básica y Aplicada Del NEA, (IQUIBA NEA- UNNE- CONICET), Facultad de Medicina, Universidad Nacional Del Nordeste, 3400, Corrientes, Argentina.
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Metabolite profile of Nectandra oppositifolia Nees & Mart. and assessment of antitrypanosomal activity of bioactive compounds through efficiency analyses. PLoS One 2021; 16:e0247334. [PMID: 33630860 PMCID: PMC7906415 DOI: 10.1371/journal.pone.0247334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Accepted: 02/05/2021] [Indexed: 02/07/2023] Open
Abstract
EtOH extracts from the leaves and twigs of Nectandra oppositifolia Nees & Mart. shown activity against amastigote forms of Trypanosoma cruzi. These extracts were subjected to successive liquid-liquid partitioning to afford bioactive CH2Cl2 fractions. UHPLC-TOF-HRMS/MS and molecular networking were used to obtain an overview of the phytochemical composition of these active fractions. Aiming to isolate the active compounds, both CH2Cl2 fractions were subjected to fractionation using medium pressure chromatography combined with semi-preparative HPLC-UV. Using this approach, twelve compounds (1-12) were isolated and identified by NMR and HRMS analysis. Several isolated compounds displayed activity against the amastigote forms of T. cruzi, especially ethyl protocatechuate (7) with EC50 value of 18.1 μM, similar to positive control benznidazole (18.7 μM). Considering the potential of compound 7, protocatechuic acid and its respective methyl (7a), n-propyl (7b), n-butyl (7c), n-pentyl (7d), and n-hexyl (7e) esters were tested. Regarding antitrypanosomal activity, protocatechuic acid and compound 7a were inactive, while 7b-7e exhibited EC50 values from 20.4 to 11.7 μM, without cytotoxicity to mammalian cells. These results suggest that lipophilicity and molecular complexity play an important role in the activity while efficiency analysis indicates that the natural compound 7 is a promising prototype for further modifications to obtain compounds effective against the intracellular forms of T. cruzi.
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Tamura O, Morita N, Ikeda K, Chiaki H, Araki R, Tanaka III K, Hashimoto Y. Gold-Catalyzed Formal [3+2] Cycloaddition of p-Quinones and 1-Phenylpropenes in Ionic Liquid: Environmentally Friendly and Stereoselective Synthesis of 2,3-Dihydrobenzofuran Neolignans. HETEROCYCLES 2021. [DOI: 10.3987/com-20-s(k)71] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Biseugenol Exhibited Anti-Inflammatory and Anti-Asthmatic Effects in an Asthma Mouse Model of Mixed-Granulocytic Asthma. Molecules 2020; 25:molecules25225384. [PMID: 33217892 PMCID: PMC7698799 DOI: 10.3390/molecules25225384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/21/2020] [Accepted: 09/24/2020] [Indexed: 11/16/2022] Open
Abstract
In the present work, the anti-inflammatory and antiasthmatic potential of biseugenol, isolated as the main component from n-hexane extract from leaves of Nectandra leucantha and chemically prepared using oxidative coupling from eugenol, was evaluated in an experimental model of mixed-granulocytic asthma. Initially, in silico studies of biseugenol showed good predictions for drug-likeness, with adherence to Lipinski’s rules of five (RO5), good Absorption, Distribution, Metabolism and Excretion (ADME) properties and no alerts for Pan-Assay Interference Compounds (PAINS), indicating adequate adherence to perform in vivo assays. Biseugenol (20 mg·kg−1) was thus administered intraperitoneally (four days of treatment) and resulted in a significant reduction in both eosinophils and neutrophils of bronchoalveolar lavage fluid in ovalbumin-sensitized mice with no statistical difference from dexamethasone (5 mg·kg−1). As for lung function parameters, biseugenol (20 mg·kg−1) significantly reduced airway and tissue damping in comparison to ovalbumin group, with similar efficacy to positive control dexamethasone. Airway hyperresponsiveness to intravenous methacholine was reduced with biseugenol but was inferior to dexamethasone in higher doses. In conclusion, biseugenol displayed antiasthmatic effects, as observed through the reduction of inflammation and airway hyperresponsiveness, with similar effects to dexamethasone, on mixed-granulocytic ovalbumin-sensitized mice.
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Vasconcelos NG, Mallmann V, Costa ÉR, Simionatto E, Coutinho EJ, De Lara Da Silva RC, Ribeiro SM, Franco OL, Migliolo L, Croda J, Simionatto S. Antibacterial activity and synergism of the essential oil of Nectandra megapotamica (L.) flowers against OXA-23-producing Acinetobacter baumannii. JOURNAL OF ESSENTIAL OIL RESEARCH 2020. [DOI: 10.1080/10412905.2020.1740802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Nathalie Gaebler Vasconcelos
- Laboratório de Pesquisa Em Ciências da Saúde, Universidade Federal da Grande Dourados – UFGD, Dourados, Brazil
- Hospital Universitário de Dourados, Universidade Federal da Grande Dourados - UFGD, Dourados, Brazil
| | - Viviane Mallmann
- Programa de Pós-graduação em Recursos Naturais, Universidade Estadual de Mato Grosso Do Sul - UEMS, Naviraí, Brazil
| | - Érica Rodrigues Costa
- Programa de Pós-graduação em Recursos Naturais, Universidade Estadual de Mato Grosso Do Sul - UEMS, Naviraí, Brazil
| | - Euclésio Simionatto
- Programa de Pós-graduação em Recursos Naturais, Universidade Estadual de Mato Grosso Do Sul - UEMS, Naviraí, Brazil
| | - Eduardo João Coutinho
- Programa de Pós-graduação em Recursos Naturais, Universidade Estadual de Mato Grosso Do Sul - UEMS, Naviraí, Brazil
| | | | - Suzana Meira Ribeiro
- Laboratório de Pesquisa Em Ciências da Saúde, Universidade Federal da Grande Dourados – UFGD, Dourados, Brazil
- Universidade Católica Dom Bosco – UCDB, Campo Grande, Mato Grosso Do Sul, Brazil
| | - Octávio Luiz Franco
- Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, Brazil
- S-inova Biotech, Programa de Pós-Graduação Em Biotecnologia, Universidade Católica Dom Bosco – UCDB, Campo Grande, Brazil
| | - Ludovico Migliolo
- Universidade Católica Dom Bosco – UCDB, Campo Grande, Mato Grosso Do Sul, Brazil
| | - Júlio Croda
- Laboratório de Pesquisa Em Ciências da Saúde, Universidade Federal da Grande Dourados – UFGD, Dourados, Brazil
- Fundação Oswaldo Cruz, Rua Gabriel Abrão, Campo Grande, Brazil
- Universidade Federal do Mato Grosso do Sul - UFMS, Campo Grande, Brazil
| | - Simone Simionatto
- Laboratório de Pesquisa Em Ciências da Saúde, Universidade Federal da Grande Dourados – UFGD, Dourados, Brazil
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Antonio ADS, Aguiar ATC, Dos Santos GRC, Pereira HMG, da Veiga-Junior VF, Wiedemann LSM. Phytochemistry by design: a case study of the chemical composition of Ocotea guianensis optimized extracts focused on untargeted metabolomics analysis. RSC Adv 2020; 10:3459-3471. [PMID: 35497754 PMCID: PMC9048970 DOI: 10.1039/c9ra10436d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 01/15/2020] [Indexed: 02/04/2023] Open
Abstract
Untargeted metabolomics aim to provide a global chemical fingerprint of biological matrices. This research field can be used in phytochemical screenings for bioactive species or in the identification of species. Despite its importance in providing a global chemical profile, little research has focused on the optimization of the extraction methods, as each type of matrix requires a specific procedure. Therefore, we propose to evaluate the effect of different extraction features in an ultrasound-assisted extraction for the untargeted metabolomic study of an Ocotea species, a genus of great economical interest but little chemical exploitation. Method optimization was performed in a full factorial 2232 design, evaluating the solvent composition, extraction temperature, sample particle size and sample : solvent ratio effects in the metabolomic response. The effect of these parameters on the quality of the untargeted metabolomic profiles was studied by analysis of the extraction yield as well as the chromatographic and spectrometric profiles. Most substances identified were glycosylated flavonoids and aporphinic alkaloids. The application of 70% ethanol enhanced the extraction of several specialized metabolites. Statistical analysis of extraction yield and chemical profiles indicates that high temperatures and low proportion between sample and extracting solvent reduce the quality and modify the chemical profile, both qualitatively and quantitatively. The use of 70% ethanol as the extracting solvent, 1 : 12 sample : solvent ratio, 40 °C as the extraction temperature and particle size of 0.595 mm were the optimized conditions to produce a comprehensive chemical profile for Ocotea guianensis.
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Affiliation(s)
- Ananda da Silva Antonio
- Chemistry Department, Institute of Exact Sciences, Federal University of Amazonas Avenida Rodrigo Octávio, 6200, Coroado CEP: 69.077-000 Manaus AM Brazil
| | - Ana Tayná Chaves Aguiar
- Chemistry Department, Institute of Exact Sciences, Federal University of Amazonas Avenida Rodrigo Octávio, 6200, Coroado CEP: 69.077-000 Manaus AM Brazil
| | - Gustavo Ramalho Cardoso Dos Santos
- Federal University of Rio de Janeiro, Chemistry Institute, Brazilian Doping Control Laboratory (LBCD - LADETEC/IQ - UFRJ) Avenida Horácio Macedo, 1281 - Pólo de Química - Cidade Universitária, Ilha do Fundão CEP: 21941-598 Rio de Janeiro RJ Brazil
| | - Henrique Marcelo Gualberto Pereira
- Federal University of Rio de Janeiro, Chemistry Institute, Brazilian Doping Control Laboratory (LBCD - LADETEC/IQ - UFRJ) Avenida Horácio Macedo, 1281 - Pólo de Química - Cidade Universitária, Ilha do Fundão CEP: 21941-598 Rio de Janeiro RJ Brazil
| | - Valdir Florêncio da Veiga-Junior
- Chemistry Department, Institute of Exact Sciences, Federal University of Amazonas Avenida Rodrigo Octávio, 6200, Coroado CEP: 69.077-000 Manaus AM Brazil
- Chemical Engineering Section, Military Institute of Engineering Praça General Tibúrcio, 80, Praia Vermelha, Urca CEP: 22.290-270 Rio de Janeiro RJ Brazil
| | - Larissa Silveira Moreira Wiedemann
- Chemistry Department, Institute of Exact Sciences, Federal University of Amazonas Avenida Rodrigo Octávio, 6200, Coroado CEP: 69.077-000 Manaus AM Brazil
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Anti-Trypanosoma cruzi activity of costic acid isolated from Nectandra barbellata (Lauraceae) is associated with alterations in plasma membrane electric and mitochondrial membrane potentials. Bioorg Chem 2020; 95:103510. [DOI: 10.1016/j.bioorg.2019.103510] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 11/25/2019] [Accepted: 12/16/2019] [Indexed: 12/27/2022]
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da Costa-Silva TA, Conserva GAA, Galisteo AJ, Tempone AG, Lago JHG. Antileishmanial activity and immunomodulatory effect of secosubamolide, a butanolide isolated from Nectandra oppositifolia (Lauraceae). J Venom Anim Toxins Incl Trop Dis 2019; 25:e20190008. [PMID: 31467511 PMCID: PMC6707387 DOI: 10.1590/1678-9199-jvatitd-2019-0008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 06/27/2019] [Indexed: 01/15/2023] Open
Abstract
Background: Visceral leishmaniasis is a complex neglected tropical disease caused by
Leishmania donovani complex. Its current treatment
reveals strong limitations, especially high toxicity. In this context,
natural products are important sources of new drug alternatives for VL
therapy. Therefore, the antileishmanial and immunomodulatory activity of
compounds isolated from Nectandra oppositifolia (Lauraceae)
was investigated herein. Methods: The n-hexane extract from twigs of N.
oppositifolia were subjected to HPLC/HRESIMS and
bioactivity-guided fractionation to afford compounds 1 and
2 which were evaluated in vitro against
Leishmania (L.) infantum
chagasi and NCTC cells. Results: The n-hexane extract displayed activity against
L. (L.) infantum
chagasi and afforded isolinderanolide E
(1) and secosubamolide A (2),
which were effective against L. (L.)
infantum chagasi promastigotes, with IC50
values of 57.9 and 24.9 µM, respectively. Compound 2 was
effective against amastigotes (IC50 = 10.5 µM) and displayed
moderate mammalian cytotoxicity (CC50 = 42 µM). The
immunomodulatory studies of compound 2 suggested an
anti-inflammatory activity, with suppression of IL-6, IL-10, TNF with lack
of nitric oxide. Conclusion: This study showed the antileishmanial activity of compounds 1
and 2 isolated from N. oppositifolia.
Furthermore, compound 2 demonstrated an antileishmanial
activity towards amastigotes associated to an immunomodulatory effect.
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Affiliation(s)
- Thais A da Costa-Silva
- Center of Natural Sciences and Humanities, Federal University of ABC (UFBAC), São Paulo, SP, Brazil
| | - Geanne A Alves Conserva
- Center of Natural Sciences and Humanities, Federal University of ABC (UFBAC), São Paulo, SP, Brazil
| | - Andrés J Galisteo
- Institute of Tropical Medicine, University of São Paulo (USP), São Paulo, SP, Brazil
| | - Andre G Tempone
- Centre for Parasitology and Mycology, Adolfo Lutz Institute (IAL), São Paulo, SP, Brazil
| | - João Henrique G Lago
- Center of Natural Sciences and Humanities, Federal University of ABC (UFBAC), São Paulo, SP, Brazil
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Dos Santos Grecco S, Letsyo E, Tempone AG, Ghilardi Lago JH, Jerz G. Electrospray mass-spectrometry guided target isolation of neolignans from Nectandra leucantha (Lauraceae) by high performance- and spiral-coil countercurrent chromatography. J Chromatogr A 2019; 1608:460422. [PMID: 31500882 DOI: 10.1016/j.chroma.2019.460422] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 06/29/2019] [Accepted: 08/03/2019] [Indexed: 01/04/2023]
Abstract
Nectandra leucantha (Lauraceae) is a tree indigenous to the tropical Atlantic forests of Brazil, one of the most biodiverse flora hotspots worldwide. This plant species contains high concentrations of neolignan and dehydrodieugenol derivatives that express significant in-vitro activities against various parasite strains. These activities are however responsible for severe tropical human infections, such as Leishmaniasis (Leishmania spp.) and Chagas disease (Trypanosoma cruzi), which have been classified by the World Health Organization (WHO) as Neglected Tropical Diseases (NTDs). In order to optimize the isolation process for these target metabolites, n-hexane extract of the leaves was separated by means of semi-preparative high performance countercurrent chromatography (HPCCC) and scale-up spiral-coil countercurrent chromatography (sp-CCC) systems. Several biphasic solvent mixtures were evaluated for their partitioning effects on neolignans, resulting in the selection of an optimized system n-hexane - ethylacetate - methanol - water (7:3:7:3, v/v/v/v). The chromatographic experiments on the HPCCC and sp-CCC were run in the head-to-tail mode with 500 mg and 16 g injections, respectively. For specific and multiple metabolite detection, the recovered CCC-fractions were off-line injected, in the sequence of recovery, to an electrospray mass-spectrometry (ESI-MS/MS) device. A projection of the single ion traces of the target compounds, in the positive ionization mode at a scan range of m/z 100-1500, located chromatographic areas where the co-elution effects occurred and pure target metabolites were present. Five major target neolignans were specifically detected, which enabled the accurate pooling of CCC-fractions for an optimum recovery of the metabolites. The direct comparison of the performance characteristics of the two CCC-devices, with very different mechanical designs was achieved by the conversion of the time axis into a partition ratio (KD) separation scale. As a result, the compound specific KD-elution values of the target neolignan were determined in high precision, while the comparison of the calculated separation factor (α) and resolution factor (RS) values revealed a superior separation performance for the HPCCC system. Also, the reproducibility of detected metabolites in the two CCC experiments was confirmed by small variations (ΔKD ±0.1). Neolignan target compounds with anti-parasite activities were successfully isolated in the 100 mg to 4 g range in a single lab-scale countercurrent chromatographic process step.
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Affiliation(s)
- Simone Dos Santos Grecco
- Anhanguera University of São Paulo, Biotechnology and Innovation in Health and Pharmacy Postgraduate Programs, 05145-200, São Paulo, Brazil; Center of Natural Sciences and Humanities, Federal University of ABC, 09210-580, Santo André, Brazil.
| | - Emmanuel Letsyo
- Department of Food Science and Technology, Ho Technical University, P.O Box HP 217, Ho, Ghana
| | - André Gustavo Tempone
- Center of Parasitology and Mycology, Adolfo Lutz Institute, São Paulo, 01246-902, Brazil
| | | | - Gerold Jerz
- Institute of Food Chemistry, Technische Universität Braunschweig, Schleinitzstrasse 20, 38106 Braunschweig, Germany.
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Farias KS, Kato NN, Boaretto AG, Weber JI, Brust FR, Alves FM, Tasca T, Macedo AJ, Silva DB, Carollo CA. Nectandra as a renewable source for (+)-α-bisabolol, an antibiofilm and anti-Trichomonas vaginalis compound. Fitoterapia 2019; 136:104179. [DOI: 10.1016/j.fitote.2019.104179] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 05/17/2019] [Accepted: 05/18/2019] [Indexed: 12/29/2022]
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Almeida KCR, Silva BB, Alves CCF, Vieira TM, Crotti AEM, Souza JM, Martins CHG, Ribeiro AB, Squarisi IS, Tavares DC, Bernabé LDS, Magalhães LG, Miranda MLD. Biological properties and chemical composition of essential oil from Nectandra megapotamica (Spreng.) Mez. leaves (Lauraceae). Nat Prod Res 2019; 34:3149-3153. [PMID: 31084218 DOI: 10.1080/14786419.2019.1608539] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Nectandra megapotamica is a tree species that naturally occurs in the Atlantic Forest, Brazil. This paper aims to investigate the chemical composition and in vitro antibacterial, antileishmanial and antiproliferative activities of essential oil from N. megapotamica leaves (NM-EO). It displayed high antibacterial activity against Streptococcus mutans, S. sobrinus, Prevotella nigrescens and Bacteroides fragilis. NM-EO also exhibited high antileishmanial activity against promastigote forms of Leishmania amazonensis. Its antiproliferative activity was evaluated against the following cells: GM07429A (normal cell), MCF-7 (human breast adenocarcinoma), HeLa (human cervical adenocarcinoma) and M059J (human glioblastoma). Its major components, which were determined by GC-FID and GC-MS, were α-bisabolol (13.7%), bicyclogermacrene (10.9%), (E,E)-farnesene (10.6%), Z-caryophyllene (9.5%) and (E)-β-farnesene (7.0%). These results suggest that N. megapotamica, a Brazilian plant, shows initial evidence of a new and alternative source of substances of medicinal interest.
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Affiliation(s)
- Karoliny C R Almeida
- Instituto Federal de Educação, Ciência e Tecnologia do Sul de Minas Gerais, Pouso Alegre, MG, Brazil
| | - Bruna B Silva
- Instituto Federal de Educação, Ciência e Tecnologia do Sul de Minas Gerais, Pouso Alegre, MG, Brazil
| | - Cassia C F Alves
- Instituto Federal de Educação, Ciência e Tecnologia Goiano, Rio Verde, GO, Brazil
| | - Tatiana M Vieira
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Antônio E M Crotti
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - João M Souza
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, SP, Brazil
| | - Carlos H G Martins
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, SP, Brazil
| | - Arthur B Ribeiro
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, SP, Brazil
| | - Iara S Squarisi
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, SP, Brazil
| | - Denise C Tavares
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, SP, Brazil
| | - Laura Dos S Bernabé
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, SP, Brazil
| | - Lizandra G Magalhães
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, SP, Brazil
| | - Mayker L D Miranda
- Instituto Federal de Educação, Ciência e Tecnologia do Triângulo Mineiro, Uberlândia, MG, Brazil
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Dehydrodieugenol B derivatives as antiparasitic agents: Synthesis and biological activity against Trypanosoma cruzi. Eur J Med Chem 2019; 176:162-174. [PMID: 31103897 DOI: 10.1016/j.ejmech.2019.05.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/30/2019] [Accepted: 05/01/2019] [Indexed: 01/02/2023]
Abstract
Chagas disease is a neglected protozoan disease that affects more than eight million people in developing countries. Due to the limited number and toxicity profiles of therapies in current use, new drugs are urgently needed. In previous studies, we reported the isolation of two related antitrypanosomal neolignans from Nectandra leucantha (Lauraceae). In this work, a semi-synthetic library of twenty-three neolignan derivatives was prepared to explore synthetically accessible structure activity relationships (SAR) against Trypanosoma cruzi. Five compounds demonstrated activity against trypomastigotes (IC50 values from 8 to 64 μM) and eight showed activity against intracellular amastigotes (IC50 values from 7 to 16 μM). Eighteen derivatives demonstrated no mammalian cytotoxicity up to 200 μM. The phenolic acetate derivative of natural dehydrodieugenol B was effective against both parasite forms and eliminated 100% of amastigotes inside macrophages. This compound caused rapid and intense depolarization of the mitochondrial membrane potential, with decreased levels of intracellular reactive oxygen species being observed. Fluorescence assays demonstrated that this derivative affected neither the permeability nor the electric potential of the parasitic plasma membrane, an effect also corroborated by scanning electron microscopy studies. Structure-activity relationship studies (SARs) demonstrated that the presence of at least one allyl side chain on the biaryl ether core was important for antitrypanosomal activity, and that the free phenol is not essential. This set of neolignan derivatives represents a promising starting point for future Chagas disease drug discovery studies.
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Conserva GAA, da Costa-Silva TA, Amaral M, Antar GM, Neves BJ, Andrade CH, Tempone AG, Lago JHG. Butenolides from Nectandra oppositifolia (Lauraceae) displayed anti-Trypanosoma cruzi activity via deregulation of mitochondria. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 54:302-307. [PMID: 30668381 DOI: 10.1016/j.phymed.2018.09.236] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 09/25/2018] [Accepted: 09/29/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND From a previous screening of Brazilian biodiversity for antitrypanosomal activity, the n-hexane extract from twigs of Nectandra oppositifolia (Lauraceae) demonstrated in vitro activity against Trypanosoma cruzi. PURPOSE To perform the isolation and chemical characterization of bioactive compounds from n-hexane extract from twigs of N. oppositifolia and evaluate their therapeutical potential as well as to elucidate their mechanism of action against T. cruzi. METHODS/STUDY DESIGN Bioactivity-guided fractionation of the n-hexane extract from twigs of N. oppositifolia afforded three related butenolides: isolinderanolide D (1), isolinderanolide E (2) and secosubamolide A (3). These compounds were evaluated in vitro against T. cruzi (trypomastigote and amastigote forms) and against NCTC (L929) cells for mammalian cytotoxicity. Additionally, phenotypic analyzes of compounds-treated parasites were performed: alterations in the plasma membrane permeability, plasma membrane electric potential (ΔΨp), mitochondrial membrane potential (ΔΨm) and induction of ROS. RESULTS Compounds 1-3 were effective against T. cruzi, with IC50 values of 12.9, 29.9 and 12.5 µM for trypomastigotes and 25.3, 10.1 and 12.3 µM for intracellular amastigotes. Furthermore, it was observed alteration in the mitochondrial membrane potential (ΔΨm) of parasites treated with butenolides 1-3. These compounds caused no alteration to the parasite plasma membrane, and the deregulation of the mitochondria might be an early event to cell death. In addition, in silico studies showed that all butenolides were predicted to be non-mutagenic, non-carcinogenic, non hERG blockers, with acceptable human intestinal absorption, low inhibitory promiscuity with the main five CYP isoforms, and with high metabolic stability. Otherwise, tested butenolides showed unfavorable blood-brain barrier penetration (BBB+). CONCLUSION Our results demonstrated the anti-T. cruzi effects of compounds 1-3 isolated from N. oppositifolia and indicated that the lethal effect of these compounds in trypomastigotes of T. cruzi could be associated to the alteration in the mitochondrial membrane potential (ΔΨm).
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Affiliation(s)
- Geanne A Alves Conserva
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-180, São Paulo, Brazil
| | - Thais A da Costa-Silva
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-180, São Paulo, Brazil
| | - Maiara Amaral
- Centro de Parasitologia e Micologia, Instituto Adolfo Lutz, 01246-902, São Paulo, Brazil
| | - Guilherme M Antar
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, 05508-090, São Paulo, Brazil
| | - Bruno J Neves
- Laboratorio de Quimioinformática, Centro Universitário de Anápolis - UniEVANGÉLICA, 75070-290, Goiás, Brazil; LabMol, Laboratorio de Modelagem Molecular e Drug Design, Faculdade de Farmácia, Universidade Federal de Goiás, 74605-170, Goiás, Brazil
| | - Carolina H Andrade
- LabMol, Laboratorio de Modelagem Molecular e Drug Design, Faculdade de Farmácia, Universidade Federal de Goiás, 74605-170, Goiás, Brazil
| | - Andre G Tempone
- Centro de Parasitologia e Micologia, Instituto Adolfo Lutz, 01246-902, São Paulo, Brazil
| | - João Henrique G Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-180, São Paulo, Brazil.
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Fu T, Houël E, Amusant N, Touboul D, Genta-Jouve G, Della-Negra S, Fisher GL, Brunelle A, Duplais C. Biosynthetic investigation of γ-lactones in Sextonia rubra wood using in situ TOF-SIMS MS/MS imaging to localize and characterize biosynthetic intermediates. Sci Rep 2019; 9:1928. [PMID: 30760744 PMCID: PMC6374367 DOI: 10.1038/s41598-018-37577-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 12/06/2018] [Indexed: 12/22/2022] Open
Abstract
Molecular analysis by parallel tandem mass spectrometry (MS/MS) imaging contributes to the in situ characterization of biosynthetic intermediates which is crucial for deciphering the metabolic pathways in living organisms. We report the first use of TOF-SIMS MS/MS imaging for the cellular localization and characterization of biosynthetic intermediates of bioactive γ-lactones rubrynolide and rubrenolide in the Amazonian tree Sextonia rubra (Lauraceae). Five γ-lactones, including previously reported rubrynolide and rubrenolide, were isolated using a conventional approach and their structural characterization and localization at a lateral resolution of ~400 nm was later achieved using TOF-SIMS MS/MS imaging analysis. 2D/3D MS imaging at subcellular level reveals that putative biosynthetic γ-lactones intermediates are localized in the same cell types (ray parenchyma cells and oil cells) as rubrynolide and rubrenolide. Consequently, a revised metabolic pathway of rubrynolide was proposed, which involves the reaction between 2-hydroxysuccinic acid and 3-oxotetradecanoic acid, contrary to previous studies suggesting a single polyketide precursor. Our results provide insights into plant metabolite production in wood tissues and, overall, demonstrate that combining high spatial resolution TOF-SIMS imaging and MS/MS structural characterization offers new opportunities for studying molecular and cellular biochemistry in plants.
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Affiliation(s)
- Tingting Fu
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, Avenue de la Terrasse, 91198, Gif-sur-Yvette, France.,Institut de Physique Nucléaire, UMR8608, IN2P3-CNRS, Université Paris-Sud, Université Paris-Saclay, 91406, Orsay, France
| | - Emeline Houël
- CNRS UMR8172 EcoFoG, AgroParisTech, CIRAD, INRA, Université des Antilles, Université de Guyane, 97300, Cayenne, France
| | - Nadine Amusant
- CIRAD UMR93 EcoFoG, AgroParisTech, CNRS, INRA, Université des Antilles, Université de Guyane, 97310, Kourou, France
| | - David Touboul
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, Avenue de la Terrasse, 91198, Gif-sur-Yvette, France
| | - Grégory Genta-Jouve
- Université Paris Descartes, UMR CNRS 8638 COMETE, 4 avenue de l'observatoire, 75006, Paris, France
| | - Serge Della-Negra
- Institut de Physique Nucléaire, UMR8608, IN2P3-CNRS, Université Paris-Sud, Université Paris-Saclay, 91406, Orsay, France
| | | | - Alain Brunelle
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, Avenue de la Terrasse, 91198, Gif-sur-Yvette, France
| | - Christophe Duplais
- CNRS UMR8172 EcoFoG, AgroParisTech, CIRAD, INRA, Université des Antilles, Université de Guyane, 97300, Cayenne, France.
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22
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Grecco SS, Jerz G, Lago JHG, Jones PG. Crystal structure of De-hydro-dieugenol B methyl ether, a neolignan from Nectandra leucantha Nees and Mart (Lauraceae). Acta Crystallogr E Crystallogr Commun 2018; 74:518-521. [PMID: 29765758 PMCID: PMC5946980 DOI: 10.1107/s2056989018003717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 03/03/2018] [Indexed: 11/12/2022]
Abstract
In the title compound, C21H24O4 (systematic name: 4,5'-diallyl-2,2',3'-tri-meth-oxy-diphenyl ether), the aromatic rings lie almost perpendicular to each other [dihedral angle = 85.96 (2)°]. The allyl side chains show similar configurations, with Car-C-C=C (ar = aromatic) torsion angles of -123.62 (12) and -115.54 (12)°. A possible weak intra-molecular C-H⋯O inter-action is observed. In the crystal, mol-ecules are connected by two C-H⋯O hydrogen bonds, forming undulating layers lying parallel to the bc plane. Weak C-H⋯π and π-π stacking inter-actions also occur.
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Affiliation(s)
- Simone S. Grecco
- Institute of Food Chemistry, Technical University of Braunschweig, Schleinitzstrasse 20, 38106 Braunschweig, Germany
| | - Gerold Jerz
- Institute of Food Chemistry, Technical University of Braunschweig, Schleinitzstrasse 20, 38106 Braunschweig, Germany
| | - Joao Henrique G. Lago
- Center of Natural Sciences and Humanities, Federal University of ABC, 09210-580, Santo André, Brazil
| | - Peter G. Jones
- Institute of Inorganic and Analytical Chemistry, Technical University of Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
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23
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da Silva DT, Herrera R, Heinzmann BM, Calvo J, Labidi J. Nectandra grandiflora By-Products Obtained by Alternative Extraction Methods as a Source of Phytochemicals with Antioxidant and Antifungal Properties. Molecules 2018; 23:molecules23020372. [PMID: 29425157 PMCID: PMC6017794 DOI: 10.3390/molecules23020372] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 02/05/2018] [Accepted: 02/06/2018] [Indexed: 11/16/2022] Open
Abstract
Nectandra grandiflora Nees (Lauraceae) is a Brazilian native tree recognized by its durable wood and the antioxidant compounds of its leaves. Taking into account that the forest industry offers the opportunity to recover active compounds from its residues and by-products, this study identifies and underlines the potential of natural products from Nectandra grandiflora that can add value to the forest exploitation. This study shows the effect of three different extraction methods: conventional (CE), ultrasound-assisted (UAE) and microwave-assisted (MAE) on Nectandra grandiflora leaf extracts (NGLE) chemical yields, phenolic and flavonoid composition, physical characteristics as well as antioxidant and antifungal properties. Results indicate that CE achieves the highest extraction phytochemical yield (22.16%), but with similar chemical composition to that obtained by UAE and MAE. Moreover, CE also provided a superior thermal stability of NGLE. The phenolic composition of NGLE was confirmed firstly, by colorimetric assays and infrared spectra and then by chromatographic analysis, in which quercetin-3-O-rhamnoside was detected as the major compound (57.75–65.14%). Furthermore, the antioxidant capacity of the NGLE was not altered by the extraction methods, finding a high radical inhibition in all NGLE (>80% at 2 mg/mL). Regarding the antifungal activity, there was observed that NGLE possess effective bioactive compounds, which inhibit the Aspergillus niger growth.
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Affiliation(s)
- Daniela Thomas da Silva
- Center of Rural Sciences, Federal University of Santa Maria, Ave. Roraima 1000, Santa Maria 97105-900, Brazil.
| | - Rene Herrera
- Biorefinery Processes Research Group, Department of Chemical and Environmental Engineering, University of the Basque Country (UPV/EHU), Plaza Europa 1, 20018 Donostia, Spain.
| | - Berta Maria Heinzmann
- Department of Industrial Pharmacy, Federal University of Santa Maria, Ave. Roraima 1000, Santa Maria 97105-900, Brazil.
| | - Javier Calvo
- Chromatography and Mass Spectrometry Platform, CIC BiomaGUNE, Paseo Miramon 182, 200009 San Sebastian, Spain.
| | - Jalel Labidi
- Biorefinery Processes Research Group, Department of Chemical and Environmental Engineering, University of the Basque Country (UPV/EHU), Plaza Europa 1, 20018 Donostia, Spain.
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de Sousa FS, Grecco SS, Girola N, Azevedo RA, Figueiredo CR, Lago JHG. Neolignans isolated from Nectandra leucantha induce apoptosis in melanoma cells by disturbance in mitochondrial integrity and redox homeostasis. PHYTOCHEMISTRY 2017; 140:108-117. [PMID: 28478313 DOI: 10.1016/j.phytochem.2017.04.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 04/27/2017] [Accepted: 04/29/2017] [Indexed: 06/07/2023]
Abstract
Six neolignans including three previously undescribed metabolites: 1-[(7R)-hydroxy-8-propenyl]-3-[3'-methoxy-1'-(8'-propenyl)-phenoxy]-4,5-dimethoxybenzene, 4-hydroxy-5-methoxy-3-[3'-methoxy-1'-(8'-propenyl)phenoxy]-1-(7-oxo-8-propenyl)benzene and 4,5-dimethoxy-3-[3'-methoxy-1'-(8'-propenyl)phenoxy]-1-(7-oxo-8-propenyl)benzene were isolated from twigs of Nectandra leucantha Nees & Mart (Lauraceae) using bioactivity-guided fractionation. Cytotoxic activity of isolated compounds was evaluated in vitro against cancer cell lines (SK BR-3, HCT, U87-MG, A2058, and B16F10), being dehydrodieugenol B and 4-hydroxy-5-methoxy-3-[3'-methoxy-1'-(8'-propenyl)phenoxy]-1-(7-oxo-8-propenyl)benzene the most active metabolites. These compounds displayed IC50 values of 78.8 ± 2.8 and 82.2 ± 3.5 μM, respectively, against murine melanoma. Different in vitro mechanism of induced cytotoxicity for this cell line is proposed for both compounds. Obtained results indicated a remarkable effect during the induction of morphological, biochemical and enzymatic features of apoptosis, such as disruption of mitochondrial membrane potential (ΔΨm), exposure of phosphatidylserine in the outer cell membrane, and genomic DNA condensation and fragmentation. Dehydrodieugenol B induced caspase-3 and PARP activation and 4-hydroxy-5-methoxy-3-[3'-methoxy-1'-(8'-propenyl)phenoxy]-1-(7-oxo-8-propenyl)benzene downregulated the levels of Bcl-2 protein. These effects were accompanied by increased levels of reactive oxygen species as a consequence of mitochondrial damage, followed by F-actin aggregation during the cell death process. Dehydrodieugenol B showed oxidative properties and both compounds, especially 4-hydroxy-5-methoxy-3-[3'-methoxy-1'-(8'-propenyl)phenoxy]-1-(7-oxo-8-propenyl)benzene, displayed potential to alkylate nucleophiles, suggesting an accessory mechanism of tumor-induced cytotoxicity by these metabolites.
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Affiliation(s)
- Fernanda S de Sousa
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, São Paulo, 09972-270, Brazil
| | - Simone S Grecco
- Center of Natural Sciences and Humanities, Federal University of ABC, Santo Andre, 09210-580, Brazil
| | - Natalia Girola
- Department of Microbiology, Immunology and Parasitology, Federal University of São Paulo, São Paulo, 04021-001, Brazil
| | - Ricardo A Azevedo
- Laboratory of Tumor Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, 05508-900, Brazil
| | - Carlos R Figueiredo
- Department of Microbiology, Immunology and Parasitology, Federal University of São Paulo, São Paulo, 04021-001, Brazil.
| | - João Henrique G Lago
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, São Paulo, 09972-270, Brazil; Center of Natural Sciences and Humanities, Federal University of ABC, Santo Andre, 09210-580, Brazil.
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25
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Le Bras J, Muzart J. Dehydrogenative (Hetero)arene Alkoxylations Triggered by PdII
-Catalyzed C(sp2
)-H Activation and Coordinating Substituent: PdII,III
or PdIV
Complex as Key Intermediate? European J Org Chem 2017. [DOI: 10.1002/ejoc.201601592] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jean Le Bras
- Institut de Chimie Moléculaire de Reims, UMR 7312; CNRS - Université de Reims Champagne-Ardenne; B. P. 1039 51687 Reims Cedex 2 France
| | - Jacques Muzart
- Institut de Chimie Moléculaire de Reims, UMR 7312; CNRS - Université de Reims Champagne-Ardenne; B. P. 1039 51687 Reims Cedex 2 France
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